专利名称：PRODUCTION OF AN ARTICLE BY
CARBONATION OF ALKALINE MATERIALS 发明人：QUAGHEBEUR, Mieke,LAENEN, Ben,NIELSEN, Peter
申请号：EP2008055195
申请日：20080428
reaction to a book or an article公开号：WO09/132692P1
公开日：
20091105
专利内容由知识产权出版社提供
摘要：A method of producing an article comprises a step of providing an alkaline granular material comprising one or more alkaline earth metal silicate phases. The method comprises a step of compacting the granular material to obtain a compact of the granular material. The porosity of the compact is smaller than or equal to 37% by volume. The intrinsic permeability of the compact is at least 1-lCT 12 cm2. The method also comprises a reacting step arranged to form at least 5% by weight of carbonates (CO32- ), by reacting the granular material with carbon dioxide in the presence of water, thus transforming the compact into the article. In the reacting step, the compact, being unsaturated with moisture, is brought in contact with an atmosphere comprising said carbon dioxide. The atmosphere is at a temperature of at least 70°C and at a pressure of at least 0.5 MPa. The pressure is also higher than the vapour pressure of water at said temperature. As a result, at least a portion of said carbonates are formed by reaction of the one or more alkaline earth metal silicate phases. The thus formed carbonates are hence advantageously alkaline earth metal carbonates. The invention is also related to an article obtained by the method.
申请人：QUAGHEBEUR, Mieke,LAENEN, Ben,NIELSEN, Peter
地址：Henry Fordlaan 84 B-3600 Genk BE,Acacialaan 5 B-2390 Malle BE,Lebonstraat 54 B-2440 Geel BE,Zuidlaan 21 B-1560 Hoeilaart BE
国籍：BE,BE,BE,BE
代理机构：PRONOVEM-OFFICE VAN MALDEREN
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